.page-contact {
  --pc-glow-green: rgba(0, 230, 118, 0.22);
  --pc-glow-violet: rgba(124, 77, 255, 0.28);
  display: block;
  font-family: var(--font-sans);
  color: var(--text);
  overflow-x: clip;
}

.page-contact .contact-shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  padding-block: clamp(16px, 3vw, 28px) 0;
}

.page-contact .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 13px;
  letter-spacing: 0.02em;
}

.page-contact .breadcrumb-list > li + li::before {
  content: "/";
  margin-right: 10px;
  color: var(--graphite);
}

.page-contact .breadcrumb-link {
  color: var(--text-dim);
  text-decoration: none;
}

.page-contact .breadcrumb-link:hover {
  color: var(--green);
}

.page-contact .breadcrumb-current {
  color: var(--green-soft);
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding-block: clamp(28px, 5vw, 56px) clamp(40px, 7vw, 88px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: -30% -12% 0 -12%;
  background:
    radial-gradient(58% 52% at 10% 6%, var(--pc-glow-green), transparent 70%),
    radial-gradient(52% 48% at 92% 0%, var(--pc-glow-violet), transparent 72%);
  pointer-events: none;
}

.page-contact .contact-hero-inner {
  position: relative;
  display: grid;
  gap: clamp(28px, 5vw, 52px);
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.page-contact .contact-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 clamp(18px, 3vw, 26px);
  padding: 8px 16px;
  border: 1px solid rgba(0, 230, 118, 0.34);
  border-radius: var(--pill);
  background: rgba(0, 230, 118, 0.1);
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
}

.page-contact .contact-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 4px rgba(0, 230, 118, 0.18);
}

.page-contact h1 {
  margin: 0 0 clamp(16px, 3vw, 24px);
  font-size: clamp(32px, 6.4vw, 68px);
  line-height: 1.08;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--white);
}

.page-contact .contact-lede {
  margin: 0 0 clamp(22px, 3.4vw, 34px);
  max-width: 42ch;
  font-size: clamp(15px, 1.6vw, 17px);
  line-height: 1.8;
  color: var(--text);
}

.page-contact .contact-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.page-contact .contact-hero-media {
  margin: 0;
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  background: var(--ink-800);
  overflow: hidden;
  box-shadow: 0 46px 80px -52px rgba(0, 230, 118, 0.6);
}

.page-contact .contact-hero-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 5 / 3;
  object-fit: cover;
}

/* ---------- 章节通用 ---------- */
.page-contact .contact-section {
  position: relative;
  padding-block: clamp(44px, 7vw, 92px);
}

.page-contact .contact-chapter {
  display: grid;
  gap: 14px;
  margin-bottom: clamp(26px, 4.4vw, 50px);
}

.page-contact .contact-index {
  font-family: var(--font-mono);
  font-size: clamp(38px, 7vw, 66px);
  font-weight: 700;
  line-height: 0.88;
  letter-spacing: -0.04em;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(0, 230, 118, 0.6);
}

.page-contact .contact-chapter h2 {
  margin: 0 0 12px;
  font-size: clamp(23px, 3.4vw, 36px);
  line-height: 1.22;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--white);
}

.page-contact .contact-chapter-lede {
  margin: 0;
  max-width: 58ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-dim);
}

/* ---------- 01 渠道 + 工单 ---------- */
.page-contact .contact-split {
  display: grid;
  gap: clamp(20px, 3vw, 32px);
}

.page-contact .contact-channels {
  display: grid;
  gap: clamp(14px, 2.2vw, 20px);
  align-content: start;
}

.page-contact .channel-card {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: linear-gradient(152deg, var(--ink-800), var(--ink-900));
  overflow: hidden;
  transition: transform 0.42s var(--ease), border-color 0.42s var(--ease);
}

.page-contact .channel-card::after {
  content: "";
  position: absolute;
  right: -28%;
  bottom: -62%;
  width: 240px;
  height: 240px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--pc-glow-green), transparent 70%);
  pointer-events: none;
}

.page-contact .channel-card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 230, 118, 0.46);
}

.page-contact .channel-card--phone::after {
  background: radial-gradient(circle, rgba(255, 109, 0, 0.24), transparent 70%);
}

.page-contact .channel-card--address::after {
  background: radial-gradient(circle, rgba(124, 77, 255, 0.26), transparent 70%);
}

.page-contact .channel-head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.page-contact .channel-name {
  margin: 0;
  font-size: 17px;
  font-weight: 800;
  color: var(--white);
  letter-spacing: 0.01em;
}

.page-contact .channel-prio {
  padding: 5px 12px;
  border: 1px solid rgba(0, 230, 118, 0.34);
  border-radius: var(--pill);
  background: rgba(0, 230, 118, 0.12);
  color: var(--green);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.page-contact .channel-prio--amber {
  border-color: rgba(255, 109, 0, 0.36);
  background: rgba(255, 109, 0, 0.12);
  color: var(--amber);
}

.page-contact .channel-value {
  display: block;
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.9vw, 19px);
  line-height: 1.5;
  color: var(--green-soft);
  word-break: break-word;
}

.page-contact .channel-value--plain {
  font-family: var(--font-sans);
  font-size: 15px;
  font-weight: 600;
  color: var(--white);
}

.page-contact .channel-meta {
  position: relative;
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-contact .contact-ticket {
  padding: clamp(22px, 3.4vw, 34px);
  border: 1px solid rgba(0, 230, 118, 0.24);
  border-radius: var(--radius-lg);
  background:
    radial-gradient(120% 88% at 100% 0%, var(--pc-glow-violet), transparent 62%),
    linear-gradient(162deg, var(--green-deep), var(--ink-900) 76%);
}

.page-contact .contact-ticket h3 {
  margin: 0 0 10px;
  font-size: clamp(19px, 2.5vw, 25px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--white);
}

.page-contact .ticket-lede {
  margin: 0 0 20px;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text);
}

.page-contact .ticket-steps {
  counter-reset: tstep;
  display: grid;
  gap: 12px;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.page-contact .ticket-steps li {
  counter-increment: tstep;
  position: relative;
  padding: 13px 16px 13px 54px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  background: rgba(10, 14, 39, 0.6);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--text);
}

.page-contact .ticket-steps li::before {
  content: counter(tstep, decimal-leading-zero);
  position: absolute;
  left: 18px;
  top: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--green);
}

.page-contact .ticket-media {
  margin: 0 0 18px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.page-contact .ticket-media img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .ticket-note {
  margin: 0;
  padding-top: 16px;
  border-top: 1px dashed var(--line-soft);
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-dim);
}

.page-contact .ticket-note-link {
  color: var(--green-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(124, 255, 178, 0.45);
}

.page-contact .ticket-note-link:hover {
  color: var(--white);
}

/* ---------- 02 咨询分类 ---------- */
.page-contact .contact-section--topics {
  background:
    linear-gradient(180deg, transparent, rgba(19, 26, 58, 0.75) 22%, rgba(19, 26, 58, 0.75) 78%, transparent);
}

.page-contact .topic-grid {
  display: grid;
  gap: clamp(14px, 2.4vw, 22px);
}

.page-contact .topic-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: clamp(20px, 2.6vw, 28px);
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--ink-900);
  transition: transform 0.42s var(--ease), border-color 0.42s var(--ease), box-shadow 0.42s var(--ease);
}

.page-contact .topic-card::before {
  content: "";
  width: 46px;
  height: 3px;
  border-radius: var(--pill);
  background: var(--green);
}

.page-contact .topic-card--violet::before {
  background: var(--violet);
}

.page-contact .topic-card--amber::before {
  background: var(--amber);
}

.page-contact .topic-card--wine::before {
  background: var(--wine);
}

.page-contact .topic-card:hover {
  transform: translateY(-5px);
  border-color: rgba(0, 230, 118, 0.44);
  box-shadow: 0 30px 54px -36px rgba(0, 230, 118, 0.7);
}

.page-contact .topic-card h3 {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--white);
}

.page-contact .topic-card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text-dim);
}

.page-contact .topic-link {
  margin-top: auto;
  align-self: flex-start;
  padding-bottom: 2px;
  border-bottom: 1px solid rgba(0, 230, 118, 0.4);
  color: var(--green);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
}

.page-contact .topic-link:hover {
  color: var(--green-soft);
  border-color: var(--green-soft);
}

/* ---------- 03 响应时效 ---------- */
.page-contact .sla-grid {
  display: grid;
  gap: clamp(18px, 2.6vw, 28px);
  padding: clamp(24px, 3.6vw, 42px);
  border: 1px solid rgba(255, 109, 0, 0.26);
  border-radius: var(--radius-lg);
  background: linear-gradient(122deg, rgba(255, 109, 0, 0.16), rgba(124, 77, 255, 0.18) 56%, rgba(10, 14, 39, 0.4));
}

.page-contact .sla-item {
  display: grid;
  gap: 8px;
  align-content: start;
}

.page-contact .sla-value {
  font-family: var(--font-mono);
  font-size: clamp(21px, 2.8vw, 29px);
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--amber);
}

.page-contact .sla-label {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
}

.page-contact .sla-text {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--text);
}

/* ---------- 04 常见疑问 + 收束图形 ---------- */
.page-contact .contact-faq {
  display: grid;
  gap: 12px;
}

.page-contact .contact-faq details {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--ink-800);
  overflow: hidden;
  transition: border-color 0.36s var(--ease);
}

.page-contact .contact-faq details[open] {
  border-color: rgba(0, 230, 118, 0.42);
}

.page-contact .contact-faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  color: var(--white);
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  list-style: none;
  cursor: pointer;
}

.page-contact .contact-faq summary::-webkit-details-marker {
  display: none;
}

.page-contact .contact-faq summary::after {
  content: "+";
  flex: none;
  font-family: var(--font-mono);
  font-size: 20px;
  line-height: 1;
  color: var(--green);
}

.page-contact .contact-faq details[open] summary::after {
  content: "\2212";
}

.page-contact .contact-faq p {
  margin: 0;
  padding: 0 22px 20px;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--text-dim);
}

.page-contact .contact-map {
  margin: clamp(30px, 5vw, 58px) 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: linear-gradient(158deg, var(--ink-900), var(--violet-deep));
  overflow: hidden;
}

.page-contact .contact-map svg {
  display: block;
  width: 100%;
  height: auto;
}

.page-contact .contact-map svg path:nth-of-type(n + 3) {
  stroke-dasharray: 8 10;
  animation: pc-flow 9s linear infinite;
}

.page-contact .map-caption {
  padding: 16px 22px 20px;
  color: var(--text-dim);
  font-size: 13.5px;
  letter-spacing: 0.02em;
}

@keyframes pc-flow {
  from {
    stroke-dashoffset: 0;
  }
  to {
    stroke-dashoffset: -180;
  }
}

/* ---------- 桌面排版 ---------- */
@media (min-width: 640px) {
  .page-contact .topic-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-contact .contact-chapter {
    grid-template-columns: auto minmax(0, 1fr);
    align-items: start;
    gap: 28px;
  }
}

@media (min-width: 900px) {
  .page-contact .contact-hero-inner {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, 0.96fr);
    align-items: center;
  }
}

@media (min-width: 980px) {
  .page-contact .contact-split {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
    align-items: start;
  }
}

@media (min-width: 1080px) {
  .page-contact .topic-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .sla-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .contact-map svg path {
    animation: none;
  }

  .page-contact .channel-card,
  .page-contact .topic-card {
    transition: none;
  }

  .page-contact .channel-card:hover,
  .page-contact .topic-card:hover {
    transform: none;
  }
}